Compositions comprising dihydroavenanthramide D and climbazole as cosmetic and pharmaceutical compositions for alleviating itching

1. A composition comprising:

(a) dihydroavenanthramide D

and

(b) climbazole,

wherein the climbazole is present in the amount of 0.01 to 20 wt %, and

wherein dihydroavenanthramide D is present in the amount of 0.001 to 1 wt. %, based on the total weight of the composition.

2. The composition as claimed in claim 1 , wherein the weight ratio of the total amount of the dihydroavenanthramide D to the amount of climbazole ranges from 1:100 to 2:1.

3. The composition as claimed in claim 1 , further comprising a cooling agent selected from the group consisting of l-menthol, d-menthol, racemic menthol, menthone glycerol acetal, menthyl lactate, l-menthyl lactate, l-menthyl l-lactate, substituted menthyl-3-carboxamides, 2-isopropyl-N-2,3-trimethylbutanamide, substituted cyclohexanecarboxamides, 3-menthoxypropane-1,2-diol, 2-hydroxyethyl menthyl carbonate, 2-hydroxypropyl menthyl carbonate, N-acetylglycine menthyl ester, isopulegol, hydroxycarboxylic acid menthyl esters, menthyl 3-hydroxybutyrate, monomenthyl succinate, 2-mercaptocyclodecanone, menthyl 2-pyrrolidin-5-onecarboxylate, 2,3-dihydroxy-p-menthane, 3,3,5-trimethylcyclohexanone glycerol ketal, 3-menthyl-3,6-di- and tioxaalkanoates, 3-menthyl methoxyacetate and icilin, and mixtures thereof.

4. A method for treating itching (puritus) comprising applying a composition as claimed in claim 1 to skin and/or hair.

5. A method for reducing skin reddening, comprising applying a composition as claimed in claim 1 to skin.

6. A cosmetic or pharmaceutical end product, comprising a composition as claimed in claim 1 and at least one carrier or excipient.

7. The composition of claim 1 , wherein dihydroavenanthramide D is present in the amount of 0.001 to 0.2 wt. %, based on the total weight of the composition.

8. The composition of claim 2 , wherein the weight ratio of the total amount of the dihydroavenanthramide D to the amount of climbazole ranges from 1:10 to 1:2.

9. The composition of claim 3 , wherein the cooling agent is present in the amount of 0.01 to 20 wt. %, based on the total weight of the composition.

10. The composition of claim 3 , wherein the cooling agent is present in the amount of 0.1 to 5 wt. %, based on the total weight of the composition.

11. The composition of claim 1 , further comprising one or more other components selected from the group consisting of skin moisture regulators, osmolytes, keratolytic substances, preservatives, antiperspirants, solvents anti-inflammatory compounds, antioxidants, vitamins, skin tighteners, skin tanning agents, plant extracts, and surfactants.

12. The position of claim 1 , wherein the composition is in the form of an emulsion.

13. The composition of claim 11 wherein the one or more other components are selected from the group consisting of chelators and animal and/or vegetable hydrolyzates.